The absence of hair on the top of the head is a condition that could be a result of seborrheic alopecia in the scalp area, which is generally more common in clinical practice. The occurrence of this kind of hair loss is usually mostly related to the patient’s family, but also may be related to the patient’s lifestyle habits. Its including mental, stress and other correlation, such as patients who often stay up late, lack of sleep, fatigue, mental stress and so on, may trigger the occurrence of seborrheic alopecia. When this kind of hair loss occurs, it may be accompanied by greasy performance on the scalp area, and the hair is relatively fine and soft. In addition to the top of the head, seborrheic alopecia may also occur at the corners of the forehead on both sides and gradually fall out in the center. In addition to seborrheic alopecia, there is also the possibility of baldness, which usually occurs in localized patches of hair loss, and the exact cause of this hair loss is not very clear.